Using revived animated educational show Schoolhouse Rock, Colbert tried to explain, in detail, the concept of the double negative. Put to a jaunty tune, the lyrics also criticized Trump’s relationships with North Korean leader Kim Jong-un and Russian President Vladimir Putin.

“Double negative, what’s your function?/A desperate way to not side with the Russians/
Double negative, how’s that function?/ Confusing the people with sentence construction.”

“When you say something positive that’s horribly negative, add a little negative to make it positive!/For instance, ‘the president isn’t in Putin’s pocket; the president isn’t not in Putin’s pocket.’/Let’s try it again: ‘The president wasn’t owned by Kim Jong-un; the president wasn’t owned by Kim Jong-un… not.’/Or how about, ‘The president isn’t trustworthy.’ Well, let’s just let that one stand.”